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Proposition 1067 Advanced study for active noise control in aircraft

Objective

Initial assessments indicate that active noise control, the introduction of antinoise cancelling the original noise, has a promising potential for solving the critical low frequency interior noise problem of fixed wing and rotary wing aircraft.

The main goal of this project is to investigate this technique in greater detail and to identify feasible optimum active noise control systems for future practical applications.
The total project progressed extremely well. For the fixed wing aircraft group, for example, all laboratory and aircraft testing and all theoretical work could be performed as planned. In addition, the development of the two control units could be finished and finally very successfully flight tests as initially assumed. For the rotary wing aircraft group similar progress was made. Also in this group all experimental and theoretical work could be finished and successfully concluded in time.

The established results of the project by far exceeded the expectation. They are documented in more then hundred reports and range from detailed theoretical results to practically oriented laboratory and full scale flight test data of all research sub-areas considered. For the future several scientific papers are planned to be published explaining more details of these research results. Two summary reports on the project with selected data have been published already
Following an evaluation of pertinent active noise control work, detailed theoretical and experimental research is performed. The research covers interior noise calculations and noise and vibration measurements in aircraft in flight and in a full scale fuselage test section on the ground. Laboratory tests and investigations on promising new noise control transducers are included. Also, extensive work is performed on the development of optimum prototype active noise control systems. In the later phase of the study, these systems will be evaluated by ground and flight testing.

The study will advance the current technology in this field and provide a basis for improving the passenger comfort, important for the competitiveness of future European aircraft. In addition, a significant technology spin-off to other industrial branches can be expected.

Funding Scheme

CSC - Cost-sharing contracts

Coordinator

Dornier Luftfahrt GmbH
Address
An Der Bundesstraße 31
88039 Friedrichshafen
Germany

Participants (21)

Agusta SpA
Italy
Address
Via Giovanni Agusta 520
21017 Cascina Costa Di Samarate Varese
Alenia Aerospazio - Un'Azienda Finmeccanica SpA
Italy
Address
Viale Dell'aeronautica
80038 Pomigliano D'arco - Napoli
BRUEL & KJAER SOUND & VIBRATION MEASUREMENT A/S
Denmark
Address
Skodsborgvej 307
2850 Naerum
Business Unit of TNO Built Environment and Geosciences
Netherlands
Address
Van Mourik Broekmanweg 6
2628 XE Delft
CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE
France
Address
Chemin Joseph Aiguier 31
13402 Marseille
CENTRO ITALIANO RICERCHE AEROSPAZIALI SCPA
Italy
Address
Via Maiorise
81043 Capua
Computer Applied Techniques Ltd.
Ireland
Address
3,Saint James' Terrace
26 Dublin
Defence Evaluation and Research Agency (DERA)
United Kingdom
Address
Pyestock
GU14 0LS Farnborough
EUROCOPTER DEUTSCHLAND GMBH
Germany
Address
Industriestrasse 4
Donauworth
Fokker Aircraft BV
Netherlands
Address
15,Hoogoorddreef
1100 AE Amsterdam
INSTITUTO SUPERIOR TECNICO
Portugal
Address
1,Avenida Rovisco Pais 1
1049-001 Lisboa
KATHOLIEKE UNIVERSITEIT LEUVEN
Belgium
Address
Oude Markt 13
3000 Louvain / Leuven
LEUVEN MEASUREMENTS AND SYSTEMS INTERNATIONAL NV
Belgium
Address
65,Interleuvenlaan 68
3001 Heverlee
METRAVIB RECHERCHE DÉVELOPPEMENT SERVICE SA
France
Address
Chemin Des Ormeaux 200
69760 Limonest
Matra SEP Imagerie et Informatique
France
Address
38 Cezanne-guyancourt
78052 Saint-quentin-en-yvelines
RESON A/S
Denmark
Address
13,Fabriksvangen 13
3550 Slangerup
Saab AB
Sweden
Address

581 88 Linköping
THE PROVOST, FELLOWS AND SCHOLARS OF THE COLLEGE OF THE HOLY AND UNDIVIDED TRINITY OF QUEEN ELIZABETH NEAR DUBLIN HEREINAFTER TRINITY COLLEGE DUBLIN
Ireland
Address
Trinity College
2 Dublin
UNIVERSITY OF SOUTHAMPTON
United Kingdom
Address
University Road, Highfield
Southampton
University of Patras
Greece
Address
Panepistimioupolis Rion
26500 Patras
WESTLAND HELICOPTERS LTD.
United Kingdom
Address
Lysander Road
Yeovil, Somerset